Class: Daru::Accessors::ArrayWrapper

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Enumerable
Defined in:
lib/daru/accessors/array_wrapper.rb

Overview

Internal class for wrapping ruby array

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(vector, context) ⇒ ArrayWrapper

Returns a new instance of ArrayWrapper.



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# File 'lib/daru/accessors/array_wrapper.rb', line 23

def initialize vector, context
  @data = vector.to_a
  @context = context

  set_size
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/daru/accessors/array_wrapper.rb', line 21

def data
  @data
end

#size ⇒ Object

Returns the value of attribute size.



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# File 'lib/daru/accessors/array_wrapper.rb', line 20

def size
  @size
end

Instance Method Details

#<<(element) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 52

def << element
  @data << element
  set_size
end

#==(other) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 39

def == other
  @data == other
end

#[](*index) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 30

def [] *index
  @data[*index]
end

#[]=(index, value) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 34

def []= index, value
  @data[index] = value
  set_size
end

#compact ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 69

def compact
  @data - @context.missing_values
end

#delete_at(index) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 43

def delete_at index
  @data.delete_at index
  set_size
end

#dup ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 65

def dup
  ArrayWrapper.new @data.dup, @context
end

#each(&block) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 10

def each(&block)
  @data.each(&block)
  self
end

#index(*args, &block) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 48

def index *args, &block
  @data.index(*args, &block)
end

#map!(&block) ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 15

def map!(&block)
  @data.map!(&block)
  self
end

#max ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 84

def max
  compact.max
end

#mean ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 73

def mean
  values_to_sum = compact
  return nil if values_to_sum.empty?
  sum = values_to_sum.inject :+
  sum.quo(values_to_sum.size).to_f
end

#min ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 88

def min
  compact.min
end

#product ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 80

def product
  compact.inject :*
end

#sum ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 92

def sum
  compact.inject :+
end

#to_a ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 61

def to_a
  @data
end

#uniq ⇒ Object 



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# File 'lib/daru/accessors/array_wrapper.rb', line 57

def uniq
  @data.uniq
end